Try the following SAT math practice question (No Calculator) that tests your understanding of how to factor trinomials that have two variables.

The binomial $2x-3y$ is a factor of which of the following ?

1. $\quad 2x^2-xy-6y^2$
2. $\quad 2x^2+xy-6y^2$
3. $\quad 2x^2-xy+3y^2$
4. $\quad 2x^2+xy-3y^2$

 
Try the following SAT math practice question (Calculator permitted) that tests your understanding of using the properties of right triangle to find the length of line segments.

In right triangle $ABC$ shown below, what is the length of line segment $DE$ ?

1. $\quad 6.9$
2. $\quad 7.2$
3. $\quad 7.5$
4. $\quad 8$

 
Try the following SAT math practice question (No Calculator) that tests your understanding of parabolas and intersections in the $xy-$plane.

$$ h(x) = -2(x-3)^2 + 50 $$
In the $xy-$plane, the graph of the quadratic function $h(x)$ intersects the $x-$axis at the points $(a, 0)$ and $(b, 0)$, where $a$ and $b$ are constants. What is the value of $a+b$?

1. $\quad -10$
2. $\quad -6$
3. $\quad 6$
4. $\quad 10$